# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1346109499 -10800
# Node ID 0cd55268eaf4db82dd42f808ab2f033cc3982c51
# Parent  ddb68dc4ba074df469b83a781115857f9a5383f5
AAAAaaaarghhhh... forgot to request floating point pixel format for MRT textures...

diff -r ddb68dc4ba07 -r 0cd55268eaf4 prototype/src/renderer.cc
--- a/prototype/src/renderer.cc	Mon Aug 27 04:14:04 2012 +0300
+++ b/prototype/src/renderer.cc	Tue Aug 28 02:18:19 2012 +0300
@@ -40,8 +40,12 @@
 
 bool init_renderer(int xsz, int ysz)
 {
+	if(!GLEW_ARB_texture_float) {
+		fprintf(stderr, "Error: OpenGL implementation doesn't support floating point textures\n");
+		return false;
+	}
 	if(!GLEW_ARB_draw_buffers) {
-		fprintf(stderr, "OpenGL implementation doesn't support multiple render targets\n");
+		fprintf(stderr, "Error: OpenGL implementation doesn't support multiple render targets\n");
 		return false;
 	}
 
@@ -105,8 +109,7 @@
 
 		for(int i=0; i<MRT_COUNT; i++) {
 			glBindTexture(GL_TEXTURE_2D, mrt_tex[i]);
-			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_xsz, tex_ysz, 0, GL_RGBA,
-					GL_UNSIGNED_BYTE, 0);
+			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, tex_xsz, tex_ysz, 0, GL_RGBA, GL_FLOAT, 0);
 		}
 
 		glBindRenderbufferEXT(GL_RENDERBUFFER, rbuf_depth);
@@ -189,7 +192,7 @@
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, clamp);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_xsz, tex_ysz, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, tex_xsz, tex_ysz, 0, GL_RGBA, GL_FLOAT, 0);
 
 		// attach to fbo
 		glFramebufferTexture2DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i,