void pie_RemainingPasses(void)
{
GL_DEBUG("Remaining passes - shadows");
// Draw shadows
if (shadows)
{
pie_DrawShadows();
}
// Draw models
// TODO, sort list to reduce state changes
GL_DEBUG("Remaining passes - opaque models");
for (SHAPE const &shape : shapes)
{
pie_SetShaderStretchDepth(shape.stretch);
pie_Draw3DShape2(shape.shape, shape.frame, shape.colour, shape.teamcolour, shape.flag, shape.flag_data, shape.matrix);
}
// Draw translucent models last
// TODO, sort list by Z order to do translucency correctly
GL_DEBUG("Remaining passes - translucent models");
for (SHAPE const &shape : tshapes)
{
pie_SetShaderStretchDepth(shape.stretch);
pie_Draw3DShape2(shape.shape, shape.frame, shape.colour, shape.teamcolour, shape.flag, shape.flag_data, shape.matrix);
}
pie_SetShaderStretchDepth(0);
pie_DeactivateShader();
tshapes.clear();
shapes.clear();
GL_DEBUG("Remaining passes - done");
}
static void pie_Draw3DButton(iIMDShape *shape)
{
const PIELIGHT colour = WZCOL_WHITE;
const PIELIGHT teamcolour = pal_GetTeamColour(NetPlay.players[selectedPlayer].colour);
pie_SetFogStatus(false);
pie_SetDepthBufferStatus(DEPTH_CMP_LEQ_WRT_ON);
pie_ActivateShader(SHADER_BUTTON, shape, teamcolour, colour);
pie_SetRendMode(REND_OPAQUE);
glColor4ubv(colour.vector); // Only need to set once for entire model
pie_SetTexturePage(shape->texpage);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_VERTEX]); glVertexPointer(3, GL_FLOAT, 0, NULL);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_NORMAL]); glNormalPointer(GL_FLOAT, 0, NULL);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_TEXCOORD]); glTexCoordPointer(2, GL_FLOAT, 0, NULL);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, shape->buffers[VBO_INDEX]);
glDrawElements(GL_TRIANGLES, shape->npolys * 3, GL_UNSIGNED_SHORT, NULL);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
polyCount += shape->npolys;
pie_DeactivateShader();
pie_SetDepthBufferStatus(DEPTH_CMP_ALWAYS_WRT_ON);
}
static void drawDecals(const glm::mat4 &ModelViewProjection, const glm::vec4 ¶msXLight, const glm::vec4 ¶msYLight, const glm::mat4 &textureMatrix)
{
const auto &renderState = getCurrentRenderState();
const glm::vec4 fogColor(
renderState.fogColour.vector[0] / 255.f,
renderState.fogColour.vector[1] / 255.f,
renderState.fogColour.vector[2] / 255.f,
renderState.fogColour.vector[3] / 255.f
);
const auto &program = pie_ActivateShader(SHADER_DECALS, ModelViewProjection, paramsXLight, paramsYLight, 0, 1, textureMatrix,
renderState.fogEnabled, renderState.fogBegin, renderState.fogEnd, fogColor);
// select the terrain texture page
pie_SetTexturePage(terrainPage);
// use the alpha to blend
pie_SetRendMode(REND_ALPHA);
// and the texture coordinates buffer
decalVBO->bind();
glVertexAttribPointer(program.locVertex, 3, GL_FLOAT, GL_FALSE, sizeof(DecalVertex), BUFFER_OFFSET(0));
glEnableVertexAttribArray(program.locVertex);
glVertexAttribPointer(program.locTexCoord, 2, GL_FLOAT, GL_FALSE, sizeof(DecalVertex), BUFFER_OFFSET(12));
glEnableVertexAttribArray(program.locTexCoord);
glBindBuffer(GL_ARRAY_BUFFER, 0);
int size = 0;
int offset = 0;
for (int x = 0; x < xSectors; x++)
{
for (int y = 0; y < ySectors + 1; y++)
{
if (y < ySectors && offset + size == sectors[x * ySectors + y].decalOffset && sectors[x * ySectors + y].draw)
{
// append
size += sectors[x * ySectors + y].decalSize;
continue;
}
// can't append, so draw what we have and start anew
if (size > 0)
{
glDrawArrays(GL_TRIANGLES, offset, size);
}
size = 0;
if (y < ySectors && sectors[x * ySectors + y].draw)
{
offset = sectors[x * ySectors + y].decalOffset;
size = sectors[x * ySectors + y].decalSize;
}
}
}
glDepthMask(GL_TRUE);
glDisableVertexAttribArray(program.locTexCoord);
glDisableVertexAttribArray(program.locVertex);
pie_DeactivateShader();
}
static void drawDepthOnly(const glm::mat4 &ModelViewProjection, const glm::vec4 ¶msXLight, const glm::vec4 ¶msYLight)
{
const auto &program = pie_ActivateShader(SHADER_TERRAIN_DEPTH, ModelViewProjection, paramsXLight, paramsYLight, 1, glm::mat4(1.f), glm::mat4(1.f));
pie_SetTexturePage(TEXPAGE_NONE);
pie_SetRendMode(REND_OPAQUE);
// we only draw in the depth buffer of using fog of war, as the clear color is black then
if (!pie_GetFogStatus())
{
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
}
// draw slightly higher distance than it actually is so it will not
// by accident obscure the actual terrain
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(0.1f, 1.0f);
// bind the vertex buffer
geometryIndexVBO->bind();
geometryVBO->bind();
glVertexAttribPointer(program.locVertex, 3, GL_FLOAT, GL_FALSE, sizeof(RenderVertex), BUFFER_OFFSET(0));
glEnableVertexAttribArray(program.locVertex);
for (int x = 0; x < xSectors; x++)
{
for (int y = 0; y < ySectors; y++)
{
if (sectors[x * ySectors + y].draw)
{
addDrawRangeElements(GL_TRIANGLES,
sectors[x * ySectors + y].geometryOffset,
sectors[x * ySectors + y].geometryOffset + sectors[x * ySectors + y].geometrySize,
sectors[x * ySectors + y].geometryIndexSize,
GL_UNSIGNED_INT,
sectors[x * ySectors + y].geometryIndexOffset);
}
}
}
finishDrawRangeElements();
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
if (!pie_GetFogStatus())
{
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
}
// disable the depth offset
glDisable(GL_POLYGON_OFFSET_FILL);
glDisableVertexAttribArray(program.locVertex);
pie_DeactivateShader();
}
static void pie_Draw3DButton(iIMDShape *shape, PIELIGHT teamcolour)
{
const PIELIGHT colour = WZCOL_WHITE;
pie_SetFogStatus(false);
pie_SetDepthBufferStatus(DEPTH_CMP_LEQ_WRT_ON);
SHADER_PROGRAM &program = pie_ActivateShader(SHADER_BUTTON, shape, teamcolour, colour);
pie_SetRendMode(REND_OPAQUE);
pie_SetTexturePage(shape->texpage);
enableArray(shape->buffers[VBO_VERTEX], program.locVertex, 3, GL_FLOAT, false, 0, 0);
enableArray(shape->buffers[VBO_NORMAL], program.locNormal, 3, GL_FLOAT, false, 0, 0);
enableArray(shape->buffers[VBO_TEXCOORD], program.locTexCoord, 2, GL_FLOAT, false, 0, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, shape->buffers[VBO_INDEX]);
glDrawElements(GL_TRIANGLES, shape->npolys * 3, GL_UNSIGNED_SHORT, NULL);
disableArrays();
polyCount += shape->npolys;
pie_DeactivateShader();
pie_SetDepthBufferStatus(DEPTH_CMP_ALWAYS_WRT_ON);
}
void pie_RemainingPasses(void)
{
GL_DEBUG("Remaining passes - shadows");
glEnable(GL_LIGHT0);
// Draw shadows
if (shadows)
{
pie_DrawShadows();
}
// Draw models
// TODO, sort list to reduce state changes
GL_DEBUG("Remaining passes - opaque models");
glPushMatrix();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
for (unsigned i = 0; i < shapes.size(); ++i)
{
pie_Draw3DShape2(shapes[i].shape, shapes[i].frame, shapes[i].colour, shapes[i].teamcolour, shapes[i].flag, shapes[i].flag_data, shapes[i].matrix);
}
// Draw translucent models last
// TODO, sort list by Z order to do translucency correctly
GL_DEBUG("Remaining passes - translucent models");
for (unsigned i = 0; i < tshapes.size(); ++i)
{
pie_Draw3DShape2(tshapes[i].shape, tshapes[i].frame, tshapes[i].colour, tshapes[i].teamcolour, tshapes[i].flag, tshapes[i].flag_data, tshapes[i].matrix);
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_LIGHT0);
pie_DeactivateShader();
glPopMatrix();
tshapes.resize(0);
shapes.resize(0);
GL_DEBUG("Remaining passes - done");
}
static void pie_Draw3DShape2(const iIMDShape *shape, int frame, PIELIGHT colour, PIELIGHT teamcolour, int pieFlag, int pieFlagData, glm::mat4 &matrix)
{
bool light = true;
glLoadMatrixf(&matrix[0][0]);
/* Set fog status */
if (!(pieFlag & pie_FORCE_FOG) && (pieFlag & pie_ADDITIVE || pieFlag & pie_TRANSLUCENT || pieFlag & pie_PREMULTIPLIED))
{
pie_SetFogStatus(false);
}
else
{
pie_SetFogStatus(true);
}
/* Set tranlucency */
if (pieFlag & pie_ADDITIVE)
{
pie_SetRendMode(REND_ADDITIVE);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_TRANSLUCENT)
{
pie_SetRendMode(REND_ALPHA);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_PREMULTIPLIED)
{
pie_SetRendMode(REND_PREMULTIPLIED);
light = false;
}
else
{
pie_SetRendMode(REND_OPAQUE);
}
if ((pieFlag & pie_PREMULTIPLIED) == 0)
{
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.001f);
}
if (pieFlag & pie_ECM)
{
pie_SetRendMode(REND_ALPHA);
light = true;
pie_SetShaderEcmEffect(true);
}
if (light)
{
if (shape->shaderProgram)
{
pie_ActivateShader(shape->shaderProgram, shape, teamcolour, colour);
}
else
{
pie_ActivateShader(SHADER_COMPONENT, shape, teamcolour, colour);
}
}
else
{
pie_DeactivateShader();
}
glColor4ubv(colour.vector); // Only need to set once for entire model
pie_SetTexturePage(shape->texpage);
frame %= MAX(1, shape->numFrames);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_VERTEX]); glVertexPointer(3, GL_FLOAT, 0, NULL);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_NORMAL]); glNormalPointer(GL_FLOAT, 0, NULL);
glBindBuffer(GL_ARRAY_BUFFER, shape->buffers[VBO_TEXCOORD]); glTexCoordPointer(2, GL_FLOAT, 0, NULL);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, shape->buffers[VBO_INDEX]);
glDrawElements(GL_TRIANGLES, shape->npolys * 3, GL_UNSIGNED_SHORT, BUFFER_OFFSET(frame * shape->npolys * 3 * sizeof(uint16_t)));
polyCount += shape->npolys;
pie_SetShaderEcmEffect(false);
glDisable(GL_ALPHA_TEST);
}
static void pie_Draw3DShape2(iIMDShape *shape, int frame, PIELIGHT colour, PIELIGHT teamcolour, int pieFlag, int pieFlagData)
{
iIMDPoly *pPolys;
bool light = true;
bool shaders = pie_GetShaderUsage();
pie_SetAlphaTest((pieFlag & pie_PREMULTIPLIED) == 0);
/* Set fog status */
if (!(pieFlag & pie_FORCE_FOG) &&
(pieFlag & pie_ADDITIVE || pieFlag & pie_TRANSLUCENT || pieFlag & pie_BUTTON || pieFlag & pie_PREMULTIPLIED))
{
pie_SetFogStatus(false);
}
else
{
pie_SetFogStatus(true);
}
/* Set tranlucency */
if (pieFlag & pie_ADDITIVE)
{
pie_SetRendMode(REND_ADDITIVE);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_TRANSLUCENT)
{
pie_SetRendMode(REND_ALPHA);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_PREMULTIPLIED)
{
pie_SetRendMode(REND_PREMULTIPLIED);
light = false;
}
else
{
if (pieFlag & pie_BUTTON)
{
pie_SetDepthBufferStatus(DEPTH_CMP_LEQ_WRT_ON);
light = false;
if (shaders)
{
pie_ActivateShader(SHADER_BUTTON, shape, teamcolour, colour);
}
else
{
pie_ActivateFallback(SHADER_BUTTON, shape, teamcolour, colour);
}
}
pie_SetRendMode(REND_OPAQUE);
}
if (pieFlag & pie_ECM)
{
pie_SetRendMode(REND_ALPHA);
light = true;
pie_SetShaderEcmEffect(true);
}
if (light)
{
glMaterialfv(GL_FRONT, GL_AMBIENT, shape->material[LIGHT_AMBIENT]);
glMaterialfv(GL_FRONT, GL_DIFFUSE, shape->material[LIGHT_DIFFUSE]);
glMaterialfv(GL_FRONT, GL_SPECULAR, shape->material[LIGHT_SPECULAR]);
glMaterialf(GL_FRONT, GL_SHININESS, shape->shininess);
glMaterialfv(GL_FRONT, GL_EMISSION, shape->material[LIGHT_EMISSIVE]);
if (shaders)
{
pie_ActivateShader(SHADER_COMPONENT, shape, teamcolour, colour);
}
else
{
pie_ActivateFallback(SHADER_COMPONENT, shape, teamcolour, colour);
}
}
if (pieFlag & pie_HEIGHT_SCALED) // construct
{
glScalef(1.0f, (float)pieFlagData / (float)pie_RAISE_SCALE, 1.0f);
}
if (pieFlag & pie_RAISE) // collapse
{
glTranslatef(1.0f, (-shape->max.y * (pie_RAISE_SCALE - pieFlagData)) * (1.0f / pie_RAISE_SCALE), 1.0f);
}
glColor4ubv(colour.vector); // Only need to set once for entire model
pie_SetTexturePage(shape->texpage);
frame %= MAX(1, shape->numFrames);
glBegin(GL_TRIANGLES);
for (pPolys = shape->polys; pPolys < shape->polys + shape->npolys; pPolys++)
{
Vector3f vertexCoords[3];
unsigned int n, frameidx = frame;
int *index;
if (!(pPolys->flags & iV_IMD_TEXANIM))
{
frameidx = 0;
}
for (n = 0, index = pPolys->pindex;
n < pPolys->npnts;
n++, index++)
{
vertexCoords[n].x = shape->points[*index].x;
vertexCoords[n].y = shape->points[*index].y;
vertexCoords[n].z = shape->points[*index].z;
}
polyCount++;
glNormal3fv((GLfloat*)&pPolys->normal);
for (n = 0; n < pPolys->npnts; n++)
{
GLfloat* texCoord = (GLfloat*)&pPolys->texCoord[frameidx * pPolys->npnts + n];
glTexCoord2fv(texCoord);
if (!shaders)
{
glMultiTexCoord2fv(GL_TEXTURE1, texCoord);
}
glVertex3fv((GLfloat*)&vertexCoords[n]);
}
}
glEnd();
if (light || (pieFlag & pie_BUTTON))
{
if (shaders)
{
pie_DeactivateShader();
}
else
{
pie_DeactivateFallback();
}
}
pie_SetShaderEcmEffect(false);
if (pieFlag & pie_BUTTON)
{
pie_SetDepthBufferStatus(DEPTH_CMP_ALWAYS_WRT_ON);
}
}
static void pie_Draw3DShape2(iIMDShape *shape, int frame, PIELIGHT colour, PIELIGHT teamcolour, WZ_DECL_UNUSED PIELIGHT specular, int pieFlag, int pieFlagData)
{
iIMDPoly *pPolys;
bool light = lighting;
pie_SetAlphaTest(true);
/* Set fog status */
if (!(pieFlag & pie_FORCE_FOG) &&
(pieFlag & pie_ADDITIVE || pieFlag & pie_TRANSLUCENT || pieFlag & pie_BUTTON))
{
pie_SetFogStatus(false);
}
else
{
pie_SetFogStatus(true);
}
/* Set tranlucency */
if (pieFlag & pie_ADDITIVE)
{
pie_SetRendMode(REND_ADDITIVE);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_TRANSLUCENT)
{
pie_SetRendMode(REND_ALPHA);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else
{
if (pieFlag & pie_BUTTON)
{
pie_SetDepthBufferStatus(DEPTH_CMP_LEQ_WRT_ON);
}
pie_SetRendMode(REND_OPAQUE);
}
if (light)
{
const float ambient[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
const float diffuse[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
const float specular[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
const float shininess = 10;
glEnable(GL_LIGHTING);
glEnable(GL_NORMALIZE);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, ambient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess);
}
if (pieFlag & pie_HEIGHT_SCALED) // construct
{
glScalef(1.0f, (float)pieFlagData / (float)pie_RAISE_SCALE, 1.0f);
}
if (pieFlag & pie_RAISE) // collapse
{
glTranslatef(1.0f, (-shape->max.y * (pie_RAISE_SCALE - pieFlagData)) / pie_RAISE_SCALE, 1.0f);
}
glColor4ubv(colour.vector); // Only need to set once for entire model
pie_SetTexturePage(shape->texpage);
// Activate TCMask if needed
if (shape->flags & iV_IMD_TCMASK && rendStates.rendMode == REND_OPAQUE)
{
#ifdef _DEBUG
glErrors();
#endif
if (pie_GetShadersStatus())
{
pie_ActivateShader_TCMask(teamcolour, shape->tcmaskpage);
}
else
{
//Set the environment colour with tcmask
GLfloat tc_env_colour[4];
pal_PIELIGHTtoRGBA4f(&tc_env_colour[0], teamcolour);
// TU0
glActiveTexture(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, tc_env_colour);
// TU0 RGB
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_ADD_SIGNED);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
// TU0 Alpha
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
// TU1
glActiveTexture(GL_TEXTURE1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, _TEX_PAGE[shape->tcmaskpage].id);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
// TU1 RGB
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_INTERPOLATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB, GL_SRC_ALPHA);
// TU1 Alpha
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
// This is why we are doing in opaque mode.
glEnable(GL_BLEND);
glBlendFunc(GL_CONSTANT_COLOR, GL_ZERO);
glBlendColor(colour.byte.r / 255.0, colour.byte.g / 255.0,
colour.byte.b / 255.0, colour.byte.a / 255.0);
}
#ifdef _DEBUG
glErrors();
#endif
}
for (pPolys = shape->polys; pPolys < shape->polys + shape->npolys; pPolys++)
{
Vector2f texCoords[pie_MAX_VERTICES_PER_POLYGON];
Vector3f vertexCoords[pie_MAX_VERTICES_PER_POLYGON];
unsigned int n;
VERTEXID *index;
for (n = 0, index = pPolys->pindex;
n < pPolys->npnts;
n++, index++)
{
vertexCoords[n].x = shape->points[*index].x;
vertexCoords[n].y = shape->points[*index].y;
vertexCoords[n].z = shape->points[*index].z;
texCoords[n].x = pPolys->texCoord[n].x;
texCoords[n].y = pPolys->texCoord[n].y;
}
polyCount++;
// Run TextureAnimation (exluding the new teamcoloured models)
if (frame && pPolys->flags & iV_IMD_TEXANIM && !(shape->flags & iV_IMD_TCMASK))
{
frame %= shape->numFrames;
if (frame > 0)
{
const int framesPerLine = OLD_TEXTURE_SIZE_FIX / (pPolys->texAnim.x * OLD_TEXTURE_SIZE_FIX);
const int uFrame = (frame % framesPerLine) * (pPolys->texAnim.x * OLD_TEXTURE_SIZE_FIX);
const int vFrame = (frame / framesPerLine) * (pPolys->texAnim.y * OLD_TEXTURE_SIZE_FIX);
for (n = 0; n < pPolys->npnts; n++)
{
texCoords[n].x += uFrame / OLD_TEXTURE_SIZE_FIX;
texCoords[n].y += vFrame / OLD_TEXTURE_SIZE_FIX;
}
}
}
glBegin(GL_TRIANGLE_FAN);
if (light)
{
glNormal3fv((GLfloat*)&pPolys->normal);
}
for (n = 0; n < pPolys->npnts; n++)
{
glTexCoord2fv((GLfloat*)&texCoords[n]);
if (shape->flags & iV_IMD_TCMASK && rendStates.rendMode == REND_OPAQUE &&
!pie_GetShadersStatus())
{
glMultiTexCoord2fv(GL_TEXTURE1, (GLfloat*)&texCoords[n]);
}
glVertex3fv((GLfloat*)&vertexCoords[n]);
}
glEnd();
}
// Deactivate TCMask if it was previously enabled
if (shape->flags & iV_IMD_TCMASK && rendStates.rendMode == REND_OPAQUE)
{
if (pie_GetShadersStatus())
{
pie_DeactivateShader();
}
else
{
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE1);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
}
if (pieFlag & pie_BUTTON)
{
pie_SetDepthBufferStatus(DEPTH_CMP_ALWAYS_WRT_ON);
}
if (light)
{
glDisable(GL_LIGHTING);
glDisable(GL_NORMALIZE);
}
}
/**
* Draw the water.
*/
void drawWater(const glm::mat4 &viewMatrix)
{
int x, y;
const glm::vec4 paramsX(0, 0, -1.0f / world_coord(4), 0);
const glm::vec4 paramsY(1.0f / world_coord(4), 0, 0, 0);
const glm::vec4 paramsX2(0, 0, -1.0f / world_coord(5), 0);
const glm::vec4 paramsY2(1.0f / world_coord(5), 0, 0, 0);
const auto &renderState = getCurrentRenderState();
const auto &program = pie_ActivateShader(SHADER_WATER, viewMatrix, paramsX, paramsY, paramsX2, paramsY2, 0, 1,
glm::translate(glm::vec3(waterOffset, 0.f, 0.f)), glm::mat4(1.f), renderState.fogEnabled, renderState.fogBegin, renderState.fogEnd);
glDepthMask(GL_FALSE);
// first texture unit
pie_SetTexturePage(iV_GetTexture("page-80-water-1.png"));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// multiplicative blending
pie_SetRendMode(REND_MULTIPLICATIVE);
// second texture unit
glActiveTexture(GL_TEXTURE1);
pie_Texture(iV_GetTexture("page-81-water-2.png")).bind();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// bind the vertex buffer
waterIndexVBO->bind();
waterVBO->bind();
glVertexAttribPointer(program.locVertex, 3, GL_FLOAT, GL_FALSE, sizeof(RenderVertex), BUFFER_OFFSET(0));
glEnableVertexAttribArray(program.locVertex);
for (x = 0; x < xSectors; x++)
{
for (y = 0; y < ySectors; y++)
{
if (sectors[x * ySectors + y].draw)
{
addDrawRangeElements(GL_TRIANGLES,
sectors[x * ySectors + y].geometryOffset,
sectors[x * ySectors + y].geometryOffset + sectors[x * ySectors + y].geometrySize,
sectors[x * ySectors + y].waterIndexSize,
GL_UNSIGNED_INT,
sectors[x * ySectors + y].waterIndexOffset);
}
}
}
finishDrawRangeElements();
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDisableVertexAttribArray(program.locVertex);
// move the water
if (!gamePaused())
{
waterOffset += graphicsTimeAdjustedIncrement(0.1f);
}
// disable second texture
glActiveTexture(GL_TEXTURE0);
// clean up
glDepthMask(GL_TRUE);
pie_DeactivateShader();
//glBindBuffer(GL_ARRAY_BUFFER, 0); // HACK Must unbind GL_ARRAY_BUFFER (don't know if it has to be unbound everywhere), otherwise text rendering may mysteriously crash.
}
static void drawTerrainLayers(const glm::mat4 &ModelViewProjection, const glm::vec4 ¶msXLight, const glm::vec4 ¶msYLight, const glm::mat4 &textureMatrix)
{
const auto &renderState = getCurrentRenderState();
const glm::vec4 fogColor(
renderState.fogColour.vector[0] / 255.f,
renderState.fogColour.vector[1] / 255.f,
renderState.fogColour.vector[2] / 255.f,
renderState.fogColour.vector[3] / 255.f
);
const auto &program = pie_ActivateShader(SHADER_TERRAIN, ModelViewProjection, glm::vec4(0.f), glm::vec4(0.f), paramsXLight, paramsYLight, 0, 1,
glm::mat4(1.f), textureMatrix, renderState.fogEnabled, renderState.fogBegin, renderState.fogEnd, fogColor);
// additive blending
pie_SetRendMode(REND_ADDITIVE);
// only draw colors
glDepthMask(GL_FALSE);
textureIndexVBO->bind();
// load the vertex (geometry) buffer
geometryVBO->bind();
glVertexAttribPointer(program.locVertex, 3, GL_FLOAT, GL_FALSE, sizeof(RenderVertex), BUFFER_OFFSET(0));
glEnableVertexAttribArray(program.locVertex);
textureVBO->bind();
ASSERT_OR_RETURN(, psGroundTypes, "Ground type was not set, no textures will be seen.");
// draw each layer separately
for (int layer = 0; layer < numGroundTypes; layer++)
{
const glm::vec4 paramsX(0, 0, -1.0f / world_coord(psGroundTypes[layer].textureSize), 0 );
const glm::vec4 paramsY(1.0f / world_coord(psGroundTypes[layer].textureSize), 0, 0, 0 );
pie_ActivateShader(SHADER_TERRAIN, ModelViewProjection, paramsX, paramsY, paramsXLight, paramsYLight, 0, 1, glm::mat4(1.f), textureMatrix,
renderState.fogEnabled, renderState.fogBegin, renderState.fogEnd, fogColor);
// load the texture
int texPage = iV_GetTexture(psGroundTypes[layer].textureName);
pie_SetTexturePage(texPage);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// load the color buffer
glVertexAttribPointer(program.locColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(PIELIGHT), BUFFER_OFFSET(sizeof(PIELIGHT)*xSectors * ySectors * (sectorSize + 1) * (sectorSize + 1) * 2 * layer));
glEnableVertexAttribArray(program.locColor);
for (int x = 0; x < xSectors; x++)
{
for (int y = 0; y < ySectors; y++)
{
if (sectors[x * ySectors + y].draw)
{
addDrawRangeElements(GL_TRIANGLES,
sectors[x * ySectors + y].geometryOffset,
sectors[x * ySectors + y].geometryOffset + sectors[x * ySectors + y].geometrySize,
sectors[x * ySectors + y].textureIndexSize[layer],
GL_UNSIGNED_INT,
sectors[x * ySectors + y].textureIndexOffset[layer]);
}
}
}
finishDrawRangeElements();
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
// we don't need this one anymore
glDisableVertexAttribArray(program.locVertex);
glDisableVertexAttribArray(program.locColor);
pie_DeactivateShader();
}
/// Draw the shadow for a shape
static void pie_DrawShadow(iIMDShape *shape, int flag, int flag_data, const glm::vec4 &light, const glm::mat4 &modelViewMatrix)
{
static std::vector<EDGE> edgelist; // Static, to save allocations.
static std::vector<EDGE> edgelistFlipped; // Static, to save allocations.
static std::vector<EDGE> edgelistFiltered; // Static, to save allocations.
EDGE *drawlist = NULL;
unsigned edge_count;
Vector3f *pVertices = shape->points;
if (flag & pie_STATIC_SHADOW && shape->shadowEdgeList)
{
drawlist = shape->shadowEdgeList;
edge_count = shape->nShadowEdges;
}
else
{
edgelist.clear();
iIMDPoly *end = shape->polys + shape->npolys;
for (iIMDPoly *pPolys = shape->polys; pPolys != end; ++pPolys)
{
glm::vec3 p[3];
for (int j = 0; j < 3; ++j)
{
int current = pPolys->pindex[j];
p[j] = glm::vec3(pVertices[current].x, scale_y(pVertices[current].y, flag, flag_data), pVertices[current].z);
}
if (glm::dot(glm::cross(p[2] - p[0], p[1] - p[0]), glm::vec3(light)) > 0.0f)
{
for (int n = 0; n < 3; ++n)
{
// Add the edges
edgelist.push_back({pPolys->pindex[n], pPolys->pindex[(n + 1)%3]});
}
}
}
// Remove duplicate pairs from the edge list. For example, in the list ((1 2), (2 6), (6 2), (3, 4)), remove (2 6) and (6 2).
edgelistFlipped = edgelist;
std::for_each(edgelistFlipped.begin(), edgelistFlipped.end(), flipEdge);
std::sort(edgelist.begin(), edgelist.end(), edgeLessThan);
std::sort(edgelistFlipped.begin(), edgelistFlipped.end(), edgeLessThan);
edgelistFiltered.resize(edgelist.size());
edgelistFiltered.erase(std::set_difference(edgelist.begin(), edgelist.end(), edgelistFlipped.begin(), edgelistFlipped.end(), edgelistFiltered.begin(), edgeLessThan), edgelistFiltered.end());
drawlist = &edgelistFiltered[0];
edge_count = edgelistFiltered.size();
//debug(LOG_WARNING, "we have %i edges", edge_count);
if (flag & pie_STATIC_SHADOW)
{
// then store it in the imd
shape->nShadowEdges = edge_count;
shape->shadowEdgeList = (EDGE *)realloc(shape->shadowEdgeList, sizeof(EDGE) * shape->nShadowEdges);
std::copy(drawlist, drawlist + edge_count, shape->shadowEdgeList);
}
}
std::vector<Vector3f> vertexes;
for (unsigned i = 0; i < edge_count; i++)
{
int a = drawlist[i].from, b = drawlist[i].to;
glm::vec3 v1(pVertices[b].x, scale_y(pVertices[b].y, flag, flag_data), pVertices[b].z);
glm::vec3 v2(pVertices[b].x + light[0], scale_y(pVertices[b].y, flag, flag_data) + light[1], pVertices[b].z + light[2]);
glm::vec3 v3(pVertices[a].x + light[0], scale_y(pVertices[a].y, flag, flag_data) + light[1], pVertices[a].z + light[2]);
glm::vec3 v4(pVertices[a].x, scale_y(pVertices[a].y, flag, flag_data), pVertices[a].z);
vertexes.push_back(v1);
vertexes.push_back(v2);
vertexes.push_back(v3);
vertexes.push_back(v3);
vertexes.push_back(v4);
vertexes.push_back(v1);
}
// draw the shadow volume
const auto &program = pie_ActivateShader(SHADER_GENERIC_COLOR, pie_PerspectiveGet() * modelViewMatrix, glm::vec4());
static glBufferWrapper buffer;
glBindBuffer(GL_ARRAY_BUFFER, buffer.id);
glBufferData(GL_ARRAY_BUFFER, sizeof(Vector3f) * vertexes.size(), vertexes.data(), GL_STREAM_DRAW);
glEnableVertexAttribArray(program.locVertex);
glVertexAttribPointer(program.locVertex, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
glDrawArrays(GL_TRIANGLES, 0, edge_count * 2 * 3);
glDisableVertexAttribArray(program.locVertex);
pie_DeactivateShader();
}
static void pie_Draw3DShape2(const iIMDShape *shape, int frame, PIELIGHT colour, PIELIGHT teamcolour, int pieFlag, int pieFlagData, glm::mat4 const &matrix)
{
bool light = true;
/* Set fog status */
if (!(pieFlag & pie_FORCE_FOG) && (pieFlag & pie_ADDITIVE || pieFlag & pie_TRANSLUCENT || pieFlag & pie_PREMULTIPLIED))
{
pie_SetFogStatus(false);
}
else
{
pie_SetFogStatus(true);
}
/* Set tranlucency */
if (pieFlag & pie_ADDITIVE)
{
pie_SetRendMode(REND_ADDITIVE);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_TRANSLUCENT)
{
pie_SetRendMode(REND_ALPHA);
colour.byte.a = (UBYTE)pieFlagData;
light = false;
}
else if (pieFlag & pie_PREMULTIPLIED)
{
pie_SetRendMode(REND_PREMULTIPLIED);
light = false;
}
else
{
pie_SetRendMode(REND_OPAQUE);
}
if (pieFlag & pie_ECM)
{
pie_SetRendMode(REND_ALPHA);
light = true;
pie_SetShaderEcmEffect(true);
}
glm::vec4 sceneColor(lighting0[LIGHT_EMISSIVE][0], lighting0[LIGHT_EMISSIVE][1], lighting0[LIGHT_EMISSIVE][2], lighting0[LIGHT_EMISSIVE][3]);
glm::vec4 ambient(lighting0[LIGHT_AMBIENT][0], lighting0[LIGHT_AMBIENT][1], lighting0[LIGHT_AMBIENT][2], lighting0[LIGHT_AMBIENT][3]);
glm::vec4 diffuse(lighting0[LIGHT_DIFFUSE][0], lighting0[LIGHT_DIFFUSE][1], lighting0[LIGHT_DIFFUSE][2], lighting0[LIGHT_DIFFUSE][3]);
glm::vec4 specular(lighting0[LIGHT_SPECULAR][0], lighting0[LIGHT_SPECULAR][1], lighting0[LIGHT_SPECULAR][2], lighting0[LIGHT_SPECULAR][3]);
SHADER_MODE mode = shape->shaderProgram == SHADER_NONE ? light ? SHADER_COMPONENT : SHADER_NOLIGHT : shape->shaderProgram;
pie_internal::SHADER_PROGRAM &program = pie_ActivateShaderDeprecated(mode, shape, teamcolour, colour, matrix, pie_PerspectiveGet(),
glm::vec4(currentSunPosition, 0.f), sceneColor, ambient, diffuse, specular);
if (program.locations.size() >= 9)
glUniform1i(program.locations[8], (pieFlag & pie_PREMULTIPLIED) == 0);
pie_SetTexturePage(shape->texpage);
frame %= std::max<int>(1, shape->numFrames);
enableArray(shape->buffers[VBO_VERTEX], program.locVertex, 3, GL_FLOAT, false, 0, 0);
enableArray(shape->buffers[VBO_NORMAL], program.locNormal, 3, GL_FLOAT, false, 0, 0);
enableArray(shape->buffers[VBO_TEXCOORD], program.locTexCoord, 2, GL_FLOAT, false, 0, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, shape->buffers[VBO_INDEX]);
glDrawElements(GL_TRIANGLES, shape->npolys * 3, GL_UNSIGNED_SHORT, BUFFER_OFFSET(frame * shape->npolys * 3 * sizeof(uint16_t)));
disableArrays();
polyCount += shape->npolys;
pie_SetShaderEcmEffect(false);
pie_DeactivateShader();
}
