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Ep5: Obj file loading+indexed drawing+uniforms

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bloeys
2021-11-06 22:23:48 +04:00
parent 2b341132f8
commit 3167bffbd1
12 changed files with 264 additions and 39 deletions
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33
shaders/shader_program.go
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@ -1,9 +1,10 @@
package shaders
import (
"github.com/bloeys/gglm/gglm"
"github.com/bloeys/go-sdl-engine/buffers"
"github.com/bloeys/go-sdl-engine/logging"
"github.com/go-gl/gl/v4.6-compatibility/gl"
"github.com/go-gl/gl/v4.6-core/gl"
)
type ShaderProgram struct {
@ -69,6 +70,36 @@ func (sp *ShaderProgram) DisableAttribute(attribName string) {
gl.DisableVertexAttribArray(uint32(sp.GetAttribLoc(attribName)))
}
func (sp *ShaderProgram) SetUnifVec2(uniformName string, vec2 *gglm.Vec2) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniform2fv(sp.ID, loc, 1, &vec2.Data[0])
}
func (sp *ShaderProgram) SetUnifVec3(uniformName string, vec3 *gglm.Vec3) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniform3fv(sp.ID, loc, 1, &vec3.Data[0])
}
func (sp *ShaderProgram) SetUnifVec4(uniformName string, vec4 *gglm.Vec4) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniform4fv(sp.ID, loc, 1, &vec4.Data[0])
}
func (sp *ShaderProgram) SetUnifMat2(uniformName string, mat2 *gglm.Mat2) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniformMatrix2fv(sp.ID, loc, 1, true, &mat2.Data[0])
}
func (sp *ShaderProgram) SetUnifMat3(uniformName string, mat3 *gglm.Mat3) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniformMatrix3fv(sp.ID, loc, 1, true, &mat3.Data[0])
}
func (sp *ShaderProgram) SetUnifMat4(uniformName string, mat4 *gglm.Mat4) {
loc := gl.GetUniformLocation(sp.ID, gl.Str(uniformName+"\x00"))
gl.ProgramUniformMatrix4fv(sp.ID, loc, 1, true, &mat4.Data[0])
}
func (sp *ShaderProgram) Delete() {
gl.DeleteProgram(sp.ID)
}

2
shaders/shader_types.go
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@ -1,6 +1,6 @@
package shaders
import "github.com/go-gl/gl/v4.6-compatibility/gl"
import "github.com/go-gl/gl/v4.6-core/gl"
type ShaderType int

2
shaders/shaders.go
View File

@ -6,7 +6,7 @@ import (
"strings"
"github.com/bloeys/go-sdl-engine/logging"
"github.com/go-gl/gl/v4.6-compatibility/gl"
"github.com/go-gl/gl/v4.6-core/gl"
)
type Shader struct {