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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2022-11-23 19:07:18 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2022-11-23 19:07:18 +0000 |
| commit | 50d6f63fb28c82a35e68914fe941b685d26f6e89 (patch) | |
| tree | 4a86d800d36341aedee7319307675cd1e6e5b784 /gfx/gl/sceneShader.cpp | |
| parent | Support setting a viewPort uniform for those shaders which need it (diff) | |
| download | ilt-50d6f63fb28c82a35e68914fe941b685d26f6e89.tar.bz2 ilt-50d6f63fb28c82a35e68914fe941b685d26f6e89.tar.xz ilt-50d6f63fb28c82a35e68914fe941b685d26f6e89.zip | |
Add rendering support for point lights
Diffstat (limited to 'gfx/gl/sceneShader.cpp')
| -rw-r--r-- | gfx/gl/sceneShader.cpp | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/gfx/gl/sceneShader.cpp b/gfx/gl/sceneShader.cpp index 0b0c530..a02d955 100644 --- a/gfx/gl/sceneShader.cpp +++ b/gfx/gl/sceneShader.cpp @@ -2,9 +2,12 @@ #include <array> #include <gfx/gl/shaders/fs-basicShader.h> #include <gfx/gl/shaders/fs-landmassShader.h> +#include <gfx/gl/shaders/fs-pointLight.h> #include <gfx/gl/shaders/fs-waterShader.h> +#include <gfx/gl/shaders/gs-pointLight.h> #include <gfx/gl/shaders/vs-basicShader.h> #include <gfx/gl/shaders/vs-landmassShader.h> +#include <gfx/gl/shaders/vs-pointLight.h> #include <gfx/gl/shaders/vs-waterShader.h> #include <glm/gtc/type_ptr.hpp> #include <glm/gtx/transform.hpp> @@ -19,7 +22,7 @@ SceneShader::SceneShader() : void SceneShader::setViewProjection(const glm::mat4 & viewProjection) const { - for (const auto & prog : std::array<const SceneProgram *, 4> {&basic, &water, &landmass, &absolute}) { + for (const auto & prog : std::array<const SceneProgram *, 5> {&basic, &water, &landmass, &absolute, &pointLight}) { prog->setViewProjection(viewProjection); } } @@ -27,7 +30,7 @@ SceneShader::setViewProjection(const glm::mat4 & viewProjection) const void SceneShader::setViewPort(const glm::ivec4 & viewPort) const { - for (const auto & prog : std::array<const SceneProgram *, 4> {&basic, &water, &landmass, &absolute}) { + for (const auto & prog : std::array<const SceneProgram *, 5> {&basic, &water, &landmass, &absolute, &pointLight}) { prog->setViewPort(viewPort); } } @@ -73,3 +76,27 @@ SceneShader::WaterProgram::use(float waveCycle) const glm::vec3 waves {waveCycle, 0.F, 0.F}; glUniform3fv(waveLoc, 1, glm::value_ptr(waves)); } + +SceneShader::PointLightShader::PointLightShader() : + SceneProgram {pointLight_vs, pointLight_gs, pointLight_fs}, colourLoc {*this, "colour"}, kqLoc {*this, "kq"} +{ + glBindVertexArray(va); + glBindBuffer(GL_ARRAY_BUFFER, b); + glBufferData(GL_ARRAY_BUFFER, sizeof(glm::vec3), nullptr, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(0); + glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3), nullptr); + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); +} + +void +SceneShader::PointLightShader::add(const glm::vec3 & position, const glm::vec3 & colour, const float kq) const +{ + Program::use(); + glBindVertexArray(va); + glBindBuffer(GL_ARRAY_BUFFER, b); + glUniform3fv(colourLoc, 1, glm::value_ptr(colour)); + glUniform1f(kqLoc, kq); + glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(glm::vec3), glm::value_ptr(position)); + glDrawArrays(GL_POINTS, 0, 1); +} |