Provide the necessary uniforms from ShadowMap

[libs/gl.git] / source / shadowmap.cpp

diff --git a/source/shadowmap.cpp b/source/shadowmap.cpp
index a9edacfc3f9282ca6c1128d351c21712922494c7..95ef8583ccc9ab8e6b85fce1476f36d95d789cb2 100644 (file)
--- a/source/shadowmap.cpp
+++ b/source/shadowmap.cpp
@@ -18,7 +18,6 @@ ShadowMap::ShadowMap(unsigned s, const Renderable &r, const Light &l):
        Effect(r),
        size(s),
        light(l),
-       unit(3),
        radius(1)
 {
        depth_buf.set_min_filter(LINEAR);
@@ -27,6 +26,8 @@ ShadowMap::ShadowMap(unsigned s, const Renderable &r, const Light &l):
        depth_buf.set_wrap(CLAMP_TO_EDGE);
        depth_buf.storage(DEPTH_COMPONENT, size, size);
        fbo.attach(DEPTH_ATTACHMENT, depth_buf, 0);
+
+       set_texture_unit(3);
 }
 
 void ShadowMap::set_target(const Vector3 &t, float r)
@@ -38,6 +39,10 @@ void ShadowMap::set_target(const Vector3 &t, float r)
 void ShadowMap::set_texture_unit(unsigned u)
 {
        unit = u;
+
+       int i = unit;
+       shdata.uniform("shadow", i);
+       shdata.uniform("shadow_unit", i);
 }
 
 void ShadowMap::render(Renderer &renderer, const Tag &tag) const
@@ -119,6 +124,8 @@ void ShadowMap::render(Renderer &renderer, const Tag &tag) const
        tg_r.bind_to(RCOORD);
        TexUnit::activate(0);
 
+       Renderer::Push _push_rend(renderer);
+       renderer.add_shader_data(shdata);
        renderable.render(renderer, tag);
 
        Texture::unbind_from(unit);