inline void VL_glFramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer)
{
if (glFramebufferTextureLayer)
glFramebufferTextureLayer(target, attachment, texture, level, layer);
else
if (glFramebufferTextureLayerARB)
glFramebufferTextureLayerARB(target, attachment, texture, level, layer);
else
if (glFramebufferTextureLayerEXT)
glFramebufferTextureLayerEXT(target, attachment, texture, level, layer);
else
VL_UNSUPPORTED_FUNC();
}
void Scene::drawAtPoint(float*point, float* direction,
float*up, GLuint fbo, int width, int height,
float fovy, float front, float back)
{
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBOID);
glUseProgram(0);
glViewport(0,0,shadowMapSize, shadowMapSize);
for(size_t i = 0; i < lights.size(); ++i)
lights[i]->execute();
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glCullFace(GL_FRONT);
for (unsigned light = 0; light < numLights; ++ light)
{
glFramebufferTextureLayerARB(GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
shadowMapTexture, 0, light);
glClear(GL_DEPTH_BUFFER_BIT);
float* lightPos;
float lightLookAt[3];
lightPos = lights[light]->getPosition();
lights[light]->lookAt(lightLookAt);
float cutoff = lights[light]->getCutoff();
viewProjSetup(lightPos, lightLookAt, up, cutoff);
drawObjects();
viewProjSetup(lightPos, lightLookAt, up, cutoff);
texMatSetup(light);//load bias and projection/
}
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);//render to window
glViewport(0,0,width, height);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(shadowProgram);
glUniform1i(shadowTexUniform, texUnitBase);
glUniform1i(uniformTexUnitBase, texUnitBase);
glUniform1i(uniformNumLights, numLights);
viewProjSetup(point, direction, up, fovy, 1.0, front, back);
glCullFace(GL_BACK);
drawObjects();
glFlush();
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_ARBGeometryShader4_glFramebufferTextureLayerARB(JNIEnv *__env, jclass clazz, jint target, jint attachment, jint texture, jint level, jint layer) {
glFramebufferTextureLayerARBPROC glFramebufferTextureLayerARB = (glFramebufferTextureLayerARBPROC)tlsGetFunction(1115);
UNUSED_PARAM(clazz)
glFramebufferTextureLayerARB(target, attachment, texture, level, layer);
}
