void RenderMethod_PhongPoint_CG::setShaderData(const GeometryChunk &gc) {
const Renderer::Light &light0 = renderer->getLight();
ASSERT(light0.type == Renderer::Light::POINT, "point lights only pls");
mat4 MI = (gc.transformation).inverse(); // world -> object projection
// Set the position of the light (in object-space)
vec3 LightPosObj = MI.transformVector(light0.position);
cgGLSetParameter3fv(cgLightPos, LightPosObj);
// Set the position of the camera (in object-space)
vec3 CameraPosWld = renderer->getCamera().getPosition();
vec3 CameraPosObj = MI.transformVector(CameraPosWld);
cgGLSetParameter3fv(cgCameraPos, CameraPosObj);
// Set the light properties
cgGLSetParameter1fv(cgkC, &light0.kC);
cgGLSetParameter1fv(cgkL, &light0.kL);
cgGLSetParameter1fv(cgkQ, &light0.kQ);
// Set the material properties
cgGLSetParameter4fv(cgKa, gc.material.Ka);
cgGLSetParameter4fv(cgKd, gc.material.Kd);
cgGLSetParameter4fv(cgKs, gc.material.Ks);
cgGLSetParameter1fv(cgShininess, &gc.material.shininess);
// Everything else
cgGLSetStateMatrixParameter(cgMVP, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
cgGLSetStateMatrixParameter(cgView, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
}
void RenderMethod_Grass_CG::setShaderData(const GeometryChunk &gc) {
const Renderer::Light &light0 = renderer->getLight();
ASSERT(light0.type == Renderer::Light::POINT, "point lights only pls");
mat4 MI = (gc.transformation).inverse(); // world -> object projection
// Set the position of the light (in object-space)
vec3 LightPosObj = MI.transformVector(light0.position);
cgGLSetParameter3fv(cgLightPos, LightPosObj);
// Set the position of the camera (in object-space)
vec3 CameraPosWld = renderer->getCamera().getPosition();
vec3 CameraPosObj = MI.transformVector(CameraPosWld);
cgGLSetParameter3fv(cgCameraPos, CameraPosObj);
// Send the inverse view matrix
mat4 ViewI = getViewI();
cgGLSetMatrixParameterfr(cgViewI, ViewI);
// Send the camera right vector (in object-space)
vec3 CameraRightEye = vec3(1.0, 0.0, 0.0);
vec3 CameraRightObj = ViewI.transformVector(CameraRightEye);
cgGLSetParameter3fv(cgCameraRight, CameraRightObj);
// Send the camera right vector (in object-space)
vec3 CameraUpEye = vec3(0.0, 1.0, 0.0);
vec3 CameraUpObj = ViewI.transformVector(CameraUpEye);
cgGLSetParameter3fv(cgCameraUp, CameraUpObj);
// Set the light properties
cgGLSetParameter1fv(cgkC, &light0.kC);
cgGLSetParameter1fv(cgkL, &light0.kL);
cgGLSetParameter1fv(cgkQ, &light0.kQ);
// Set the material properties
cgGLSetParameter4fv(cgKa, gc.material.Ka);
cgGLSetParameter4fv(cgKd, gc.material.Kd);
// Set animation time
cgGLSetParameter1fv(cgTime, &angle);
// Everything else
cgGLSetStateMatrixParameter(cgMVP, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
cgGLSetStateMatrixParameter(cgView, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
}
static void gl_cg_set_uniform_parameter(
void *data,
struct uniform_info *param,
void *uniform_data)
{
CGparameter location;
cg_shader_data_t *cg = (cg_shader_data_t*)data;
if (!param || !param->enabled)
return;
if (param->lookup.enable)
{
char ident[64];
CGprogram prog = 0;
switch (param->lookup.type)
{
case SHADER_PROGRAM_VERTEX:
prog = cg->prg[param->lookup.idx].vprg;
break;
case SHADER_PROGRAM_FRAGMENT:
default:
prog = cg->prg[param->lookup.idx].fprg;
break;
}
if (param->lookup.add_prefix)
snprintf(ident, sizeof(ident), "IN.%s", param->lookup.ident);
location = cgGetNamedParameter(prog, param->lookup.add_prefix ? ident : param->lookup.ident);
}
else
{
struct uniform_cg *cg_param = (struct uniform_cg*)uniform_data;
location = cg_param->loc;
}
switch (param->type)
{
case UNIFORM_1F:
cgGLSetParameter1f(location, param->result.f.v0);
break;
case UNIFORM_2F:
cgGLSetParameter2f(location, param->result.f.v0, param->result.f.v1);
break;
case UNIFORM_3F:
cgGLSetParameter3f(location, param->result.f.v0, param->result.f.v1,
param->result.f.v2);
break;
case UNIFORM_4F:
cgGLSetParameter4f(location, param->result.f.v0, param->result.f.v1,
param->result.f.v2, param->result.f.v3);
break;
case UNIFORM_1FV:
cgGLSetParameter1fv(location, param->result.floatv);
break;
case UNIFORM_2FV:
cgGLSetParameter2fv(location, param->result.floatv);
break;
case UNIFORM_3FV:
cgGLSetParameter3fv(location, param->result.floatv);
break;
case UNIFORM_4FV:
cgGLSetParameter3fv(location, param->result.floatv);
break;
case UNIFORM_1I:
/* Unimplemented - Cg limitation */
break;
}
}
