[core.matrix_transform] fixed a bug where orthographic matrices were …

…incorrect.
harrand · Feb 24, 2024 · 176615f · 176615f
1 parent 60c7baf
commit 176615f
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/src/tz/core/matrix_transform.cpp b/src/tz/core/matrix_transform.cpp
@@ -136,7 +136,7 @@ namespace tz
 		m(1, 1) = 2.0f / (top - bottom);
 		m(2, 2) = -2.0f / (farval - nearval);
 
-		mat4::Row& bottom_row = m[2];
+		mat4::Row& bottom_row = m[3];
 		bottom_row[0] = -(right + left) / (right - left);
 		bottom_row[1] = -(top + bottom) / (top - bottom);
 		bottom_row[2] = -(farval + nearval) / (farval - nearval);

diff --git a/src/tz/dbgui/dbgui.cpp b/src/tz/dbgui/dbgui.cpp
@@ -536,10 +536,10 @@ namespace tz::dbgui
 			TopazShaderRenderData& shader_data = renderer.get_resource(global_render_data->shader_data_buffer)->data_as<TopazShaderRenderData>().front();
 			const ImGuiIO& io = ImGui::GetIO();
 			shader_data.vp = tz::orthographic(
-				0,
-				io.DisplaySize.x,
-				0,
-				io.DisplaySize.y,
+				-io.DisplaySize.x * 0.5f,
+				io.DisplaySize.x * 0.5f,
+				-io.DisplaySize.y * 0.5f,
+				io.DisplaySize.y * 0.5f,
 				-0.1f,
 				0.1f
 			) * tz::view(tz::vec3{io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.5f, 0.0f}, {});