Put depth in 0..1; evidently even fp32 depth is clamped in the ARB version.

[nageru] / flow.cpp

diff --git a/flow.cpp b/flow.cpp
index ac9238759054939ee91345dda2206968691321ca..6a9d0eeb74ce551455e2392fb963e211759aaab3 100644 (file)
--- a/flow.cpp
+++ b/flow.cpp
@@ -1390,7 +1390,7 @@ void Splat::exec(GLuint tex0, GLuint tex1, GLuint forward_flow_tex, GLuint backw
        glViewport(0, 0, width, height);
        glDisable(GL_BLEND);
        glEnable(GL_DEPTH_TEST);
-       glDepthFunc(GL_LESS);  // We store the difference between I_0 and I_1, where less difference is good. (Default is effectively +inf, which always loses.)
+       glDepthFunc(GL_LESS);  // We store the difference between I_0 and I_1, where less difference is good. (Default 1.0 is effectively +inf, which always loses.)
        glBindVertexArray(splat_vao);
 
        // FIXME: Get this into FBOSet, so we can reuse FBOs across frames.
@@ -1513,7 +1513,7 @@ GLuint Interpolate::exec(GLuint tex0, GLuint tex1, GLuint forward_flow_tex, GLui
        {
                ScopedTimer timer("Clear", &total_timer);
                glClearTexImage(flow_tex, 0, GL_RG, GL_FLOAT, nullptr);
-               float infinity = 1000000.0f;
+               float infinity = 1.0f;
                glClearTexImage(depth_tex, 0, GL_DEPTH_COMPONENT, GL_FLOAT, &infinity);
        }