void Light::setup(GLint glLightId_in)
{
GLint lightId = (glLightId_in != -1)?glLightId_in:glLightId;
glLightId = lightId;
enable();
glMatrixMode(GL_MODELVIEW);
if (has_target && (type == LIGHT_SPOT || type == LIGHT_AREA))
{
// Vector direction;
direction = position;
direction -= target;
//direction.makeUnit();
//#if !defined(ARCH_PSP) && !defined(OPENGL_ES) && !defined(ARCH_DC)
// GLShader::defaultShader.setShaderValue("lightDir",direction);
//#endif
#ifdef ARCH_PSP
ScePspFVector3 lightPosition = { position.x, position.y, position.z };
ScePspFVector3 lightDirection = { direction.x, direction.y, direction.z };
sceGuLight( lightId, GU_SPOTLIGHT, GU_DIFFUSE_AND_SPECULAR, &lightPosition );
//sceGuLight( lightId, GU_SPOTLIGHT, GU_SPECULAR, &lightPosition );
sceGuLightSpot(lightId, &lightDirection, exponent, cutoff);
#else
#ifndef ARCH_DC
GLfloat Direction[] = { direction.x, direction.y, direction.z, 1.0f };
GLfloat Position[] = { position.x, position.y, position.z, 1.0f };
glLightfv(lightId, GL_POSITION, Position);
glLightfv(lightId, GL_SPOT_DIRECTION, Direction);
#endif
#endif
}
else
{
if (type==LIGHT_DIRECTIONAL)
{
direction = XYZ(1,0,0);
if (rotation.x || rotation.y || rotation.z || rotation != rotation_last)
{
Vector direction_in;
direction_in = XYZ(1,0,0);
// float dirTransform[16];
// glMatrixMode(GL_MODELVIEW);
// glPushMatrix();
// glLoadIdentity();
// glRotatef(rotation.z,0,0,1);
// glRotatef(rotation.y,0,1,0);
// glRotatef(rotation.x,1,0,0);
// glGetFloatv(GL_MODELVIEW_MATRIX,dirTransform);
// glPopMatrix();
//
// matTransform(dirTransform,direction_in,direction);
// direction.makeUnit();
directionTransform.pushMatrix();
if (rotation.z) directionTransform.rotate(rotation.z,0,0,1);
if (rotation.y) directionTransform.rotate(rotation.y,0,1,0);
if (rotation.x) directionTransform.rotate(rotation.x,1,0,0);
directionTransform.apply(direction_in, direction);
directionTransform.popMatrix();
// direction = XYZ(cos(DEGTORAD(rotation.x)),sin(DEGTORAD(rotation.y)),sin(DEGTORAD(rotation.z)));
direction.makeUnit();
rotation_last = rotation;
}
#ifdef ARCH_PSP
ScePspFVector3 lightDirection = { direction.x, direction.y, direction.z };
sceGuLight( lightId, GU_DIRECTIONAL, GU_DIFFUSE_AND_SPECULAR, &lightDirection );
//sceGuLight( lightId, GU_DIRECTIONAL, GU_SPECULAR, &lightDirection );
#else
GLfloat Position[] = { direction.x, direction.y, direction.z, 0.0f };
// GLfloat Position[] = { 1, 0, 0, 0.0 };
#ifndef ARCH_DC
glLightfv(lightId, GL_POSITION, Position);
#endif
#endif
}
#ifndef ARCH_PSP
#ifndef ARCH_DC
else
{
if (parent)
{
glPushMatrix();
parent->transformBegin();
}
glPushMatrix();
ObjectController lCtl;
lCtl.setRotation(rotation);
lCtl.setPosition(position);
lCtl.transformBegin();
//
// if (position.x || position.y || position.z)
// {
// glTranslatef(position.x,position.y,position.z);
// }
//
// if (rotation.x || rotation.y || rotation.z)
// {
// if (rotation.z)
// {
// glRotatef(rotation.z,0,0,1);
// }
// if (rotation.y)
// {
// glRotatef(rotation.y,0,1,0);
// }
// if (rotation.x)
// {
// glRotatef(rotation.x,1,0,0);
// }
// }
GLfloat Direction[] = { 0, 0, -1, 1 };
glLightfv(lightId, GL_SPOT_DIRECTION, Direction);
GLfloat Position[] = { 0, 0, 0, 1 };
glLightfv(lightId, GL_POSITION, Position);
glGetFloatv(GL_MODELVIEW_MATRIX,transMatrix);
lCtl.transformEnd();
glPopMatrix();
// glPushMatrix();
// #ifdef ARCH_PSP
// ScePspFVector3 lightPosition = { position.x, position.y, position.z };
// //sceGuLight( lightId, GU_POINTLIGHT, GU_AMBIENT_AND_DIFFUSE, &lightPosition );
// sceGuLight( lightId, GU_POINTLIGHT, GU_SPECULAR, &lightPosition );
// #else
// GLfloat Position[] = { position.x, position.y, position.z, 1.0 };
// glLightfv(lightId, GL_POSITION, Position);
// #endif
// glPopMatrix();
if (parent)
{
parent->transformEnd();
glPopMatrix();
}
}
#endif
#endif
// if (type == LIGHT_DIRECTIONAL)
// {
// GLfloat Position[] = { direction.x, direction.y, direction.z, 0 };
// glLightfv(lightId, GL_POSITION, Position);
// }
}
#ifndef ARCH_DC
if (type == LIGHT_POINT)
{
#ifdef ARCH_PSP
ScePspFVector3 lightPosition = { position.x, position.y, position.z };
sceGuLight( lightId, GU_POINTLIGHT, GU_DIFFUSE_AND_SPECULAR, &lightPosition );
// sceGuLight( lightId, GU_POINTLIGHT, GU_SPECULAR, &lightPosition );
#else
GLfloat Position[] = { position.x, position.y, position.z, 1 };
glLightfv(lightId, GL_POSITION, Position);
// printf("pos: %d, %f, %f, %f\n",lightId,Position[0],Position[1],Position[2]);
#endif
#ifndef ARCH_PSP
if (cutoff)
{
glLightf(lightId, GL_SPOT_EXPONENT, 1.0f/cutoff);
}
else
{
glLightf(lightId, GL_SPOT_EXPONENT, 0);
}
#endif
}
#ifndef ARCH_PSP
if ((type == LIGHT_SPOT)) // || type == LIGHT_PROJECTOR
{
glLightf(lightId, GL_SPOT_CUTOFF, cutoff/2.0f);
glLightf(lightId, GL_SPOT_EXPONENT, 1.0);
}
#endif
#ifdef ARCH_PSP
sceGuLightMode(GU_SEPARATE_SPECULAR_COLOR);
sceGuLightColor( lightId, GU_AMBIENT, GU_COLOR( ambient.r, ambient.g, ambient.b, 1.0f ));
sceGuLightColor( lightId, GU_DIFFUSE, GU_COLOR( diffuse.r, diffuse.g, diffuse.b, 1.0f ));
sceGuLightColor( lightId, GU_SPECULAR, GU_COLOR( specular.r, specular.g, specular.b, 1.0f ));
#else
//#ifndef OPENGL_ES
// glEnable(GL_SEPARATE_SPECULAR_COLOR);
// glLightModeli (GL_LIGHT_MODEL_COLOR_CONTROL,GL_SEPARATE_SPECULAR_COLOR);
// glEnable(GL_COLOR_SUM);
//#endif
GLfloat Ambient[] = { ambient.r, ambient.g, ambient.b, 1 };
GLfloat Diffuse[] = { diffuse.r, diffuse.g, diffuse.b, 1 };
GLfloat Specular[] = { specular.r, specular.g, specular.b, 1 };
glLightfv(lightId, GL_AMBIENT, Ambient);
glLightfv(lightId, GL_DIFFUSE, Diffuse);
glLightfv(lightId, GL_SPECULAR, Specular);
#endif
#ifdef ARCH_PSP
sceGuEnable(gl_lights[lightId]);
sceGuLightAtt(lightId, constant_attenuation, linear_attenuation, quadratic_attenuation);
#else
glLightf(lightId, GL_CONSTANT_ATTENUATION, constant_attenuation);
glLightf(lightId, GL_LINEAR_ATTENUATION, linear_attenuation);
glLightf(lightId, GL_QUADRATIC_ATTENUATION, quadratic_attenuation);
glEnable(lightId);
#endif
#endif
};
int main(int argc, char* argv[])
{
SetupCallbacks();
// generate geometry
genGrid( GRID_ROWS, GRID_COLUMNS, GRID_SIZE, grid_vertices, grid_indices );
genTorus( TORUS_ROWS, TORUS_SLICES, TORUS_RADIUS, TORUS_THICKNESS, torus_vertices, torus_indices );
// flush cache so that no stray data remains
sceKernelDcacheWritebackAll();
// setup VRAM buffers
void* frameBuffer = (void*)0;
const void* doubleBuffer = (void*)0x44000;
const void* renderTarget = (void*)0x88000;
const void* depthBuffer = (void*)0x110000;
// setup GU
sceGuInit();
sceGuStart(GU_DIRECT,list);
sceGuDrawBuffer(GU_PSM_4444,frameBuffer,BUF_WIDTH);
sceGuDispBuffer(SCR_WIDTH,SCR_HEIGHT,(void*)doubleBuffer,BUF_WIDTH);
sceGuDepthBuffer((void*)depthBuffer,BUF_WIDTH);
sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
sceGuDepthRange(0xc350,0x2710);
sceGuScissor(0,0,SCR_WIDTH,SCR_HEIGHT);
sceGuEnable(GU_SCISSOR_TEST);
sceGuDepthFunc(GU_GEQUAL);
sceGuEnable(GU_DEPTH_TEST);
sceGuFrontFace(GU_CW);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_CULL_FACE);
sceGuEnable(GU_TEXTURE_2D);
sceGuEnable(GU_DITHER);
sceGuFinish();
sceGuSync(0,0);
sceDisplayWaitVblankStart();
sceGuDisplay(GU_TRUE);
// setup matrices
ScePspFMatrix4 identity;
ScePspFMatrix4 projection;
ScePspFMatrix4 view;
gumLoadIdentity(&identity);
gumLoadIdentity(&projection);
gumPerspective(&projection,75.0f,16.0f/9.0f,0.5f,1000.0f);
{
ScePspFVector3 pos = {0,0,-5.0f};
gumLoadIdentity(&view);
gumTranslate(&view,&pos);
}
ScePspFMatrix4 textureProjScaleTrans;
gumLoadIdentity(&textureProjScaleTrans);
textureProjScaleTrans.x.x = 0.5;
textureProjScaleTrans.y.y = -0.5;
textureProjScaleTrans.w.x = 0.5;
textureProjScaleTrans.w.y = 0.5;
ScePspFMatrix4 lightProjection;
ScePspFMatrix4 lightProjectionInf;
ScePspFMatrix4 lightView;
ScePspFMatrix4 lightMatrix;
gumLoadIdentity(&lightProjection);
gumPerspective(&lightProjection,75.0f,1.0f,0.1f,1000.0f);
gumLoadIdentity(&lightProjectionInf);
gumPerspective(&lightProjectionInf,75.0f,1.0f,0.0f,1000.0f);
gumLoadIdentity(&lightView);
gumLoadIdentity(&lightMatrix);
// define shadowmap
Texture shadowmap = {
GU_PSM_4444,
0, 128, 128, 128,
sceGeEdramGetAddr() + (int)renderTarget
};
// define geometry
Geometry torus = {
identity,
sizeof(torus_indices)/sizeof(unsigned short),
torus_indices,
torus_vertices,
0xffffff
};
Geometry grid = {
identity,
sizeof(grid_indices)/sizeof(unsigned short),
grid_indices,
grid_vertices,
0xff7777
};
// run sample
int val = 0;
for(;;)
{
// update matrices
// grid
{
ScePspFVector3 pos = {0,-1.5f,0};
gumLoadIdentity(&grid.world);
gumTranslate(&grid.world,&pos);
}
// torus
{
ScePspFVector3 pos = {0,0.5f,0.0f};
ScePspFVector3 rot = {val * 0.79f * (GU_PI/180.0f), val * 0.98f * (GU_PI/180.0f), val * 1.32f * (GU_PI/180.0f)};
gumLoadIdentity(&torus.world);
gumTranslate(&torus.world,&pos);
gumRotateXYZ(&torus.world,&rot);
}
// orbiting light
{
ScePspFVector3 lightLookAt = { torus.world.w.x, torus.world.w.y, torus.world.w.z };
ScePspFVector3 rot1 = {0,val * 0.79f * (GU_PI/180.0f),0};
ScePspFVector3 rot2 = {-(GU_PI/180.0f)*60.0f,0,0};
ScePspFVector3 pos = {0,0,LIGHT_DISTANCE};
gumLoadIdentity(&lightMatrix);
gumTranslate(&lightMatrix,&lightLookAt);
gumRotateXYZ(&lightMatrix,&rot1);
gumRotateXYZ(&lightMatrix,&rot2);
gumTranslate(&lightMatrix,&pos);
}
gumFastInverse(&lightView,&lightMatrix);
// render to shadow map
{
sceGuStart(GU_DIRECT,list);
// set offscreen texture as a render target
sceGuDrawBufferList(GU_PSM_4444,(void*)renderTarget,shadowmap.stride);
// setup viewport
sceGuOffset(2048 - (shadowmap.width/2),2048 - (shadowmap.height/2));
sceGuViewport(2048,2048,shadowmap.width,shadowmap.height);
// clear screen
sceGuClearColor(0xffffffff);
sceGuClearDepth(0);
sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);
// setup view/projection from light
sceGuSetMatrix(GU_PROJECTION,&lightProjection);
sceGuSetMatrix(GU_VIEW,&lightView);
// shadow casters are drawn in black
// disable lighting and texturing
sceGuDisable(GU_LIGHTING);
sceGuDisable(GU_TEXTURE_2D);
// draw torus to shadow map
drawShadowCaster( &torus );
sceGuFinish();
sceGuSync(0,0);
}
// render to frame buffer
{
sceGuStart(GU_DIRECT,list);
// set frame buffer
sceGuDrawBufferList(GU_PSM_4444,(void*)frameBuffer,BUF_WIDTH);
// setup viewport
sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
// clear screen
sceGuClearColor(0xff554433);
sceGuClearDepth(0);
sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);
// setup view/projection from camera
sceGuSetMatrix(GU_PROJECTION,&projection);
sceGuSetMatrix(GU_VIEW,&view);
sceGuSetMatrix(GU_MODEL,&identity);
// setup a light
ScePspFVector3 lightPos = { lightMatrix.w.x, lightMatrix.w.y, lightMatrix.w.z };
ScePspFVector3 lightDir = { lightMatrix.z.x, lightMatrix.z.y, lightMatrix.z.z };
sceGuLight(0,GU_SPOTLIGHT,GU_DIFFUSE,&lightPos);
sceGuLightSpot(0,&lightDir, 5.0, 0.6);
sceGuLightColor(0,GU_DIFFUSE,0x00ff4040);
sceGuLightAtt(0,1.0f,0.0f,0.0f);
sceGuAmbient(0x00202020);
sceGuEnable(GU_LIGHTING);
sceGuEnable(GU_LIGHT0);
// draw torus
drawGeometry( &torus );
// setup texture projection
sceGuTexMapMode( GU_TEXTURE_MATRIX, 0, 0 );
sceGuTexProjMapMode( GU_POSITION );
// set shadowmap as a texture
sceGuTexMode(shadowmap.format,0,0,0);
sceGuTexImage(shadowmap.mipmap,shadowmap.width,shadowmap.height,shadowmap.stride,shadowmap.data);
sceGuTexFunc(GU_TFX_MODULATE,GU_TCC_RGB);
sceGuTexFilter(GU_LINEAR,GU_LINEAR);
sceGuTexWrap(GU_CLAMP,GU_CLAMP);
sceGuEnable(GU_TEXTURE_2D);
// calculate texture projection matrix for shadowmap
ScePspFMatrix4 shadowProj;
gumMultMatrix(&shadowProj, &lightProjectionInf, &lightView);
gumMultMatrix(&shadowProj, &textureProjScaleTrans, &shadowProj);
// draw grid receiving shadow
drawShadowReceiver( &grid, shadowProj );
sceGuFinish();
sceGuSync(0,0);
}
sceDisplayWaitVblankStart();
frameBuffer = sceGuSwapBuffers();
val++;
}
sceGuTerm();
sceKernelExitGame();
return 0;
}